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Patent Searching and Data


Title:
SKIN PREPARATION FOR EXTERNAL USE
Document Type and Number:
Japanese Patent JPH11116454
Kind Code:
A
Abstract:

To obtain the subject preparation for external use, having unnaturally white coating color when using, capable of manifesting excellent activities for protecting ultraviolet rays by combining a specific fine particles of titanium dioxide with a specific ultraviolet absorber and/or an ultraviolet-scattering agent.

This preparation for external use is obtained by formulating (A) fine particles of titanium dioxide preferably having average primary particle diameter of 10-100 nm, and substantially in the state of non-cohesion and (B) an absorbing agent of ultraviolet rays A (preferably 4-tert-butyl-4'- methoxybenzoylmethane, etc.), and/or a scattering agent of ultraviolet rays A. The scattering agent of the ultraviolet rays A is preferably a powder of zinc oxide, cerium oxide or the like and preferably has an average particle diameter of 10-150 nm. Preferably, the component A is formulated in the proportion of 1-25 wt.% in the preparation for external use. The component B is preferably formulated in the proportion of 1-25 wt.% when the scattering agent of the ultraviolet rays A is used. When the absorbing agent of the ultraviolet rays A is used, the component B is preferably formulated in the proportion of 0.5-10%.


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Inventors:
NAGAI ISAO
Application Number:
JP29035197A
Publication Date:
April 27, 1999
Filing Date:
October 07, 1997
Export Citation:
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Assignee:
SHISEIDO CO LTD
International Classes:
A61K8/00; A61K8/29; A61Q17/04; (IPC1-7): A61K7/42
Attorney, Agent or Firm:
Yoko Hasegawa